Visiting St. Thomas in September: Everything You Need to Know
Searching for what is it like to visit St. Thomas in Setember? Discover everything you need to know about the weather, demand, pricing, and the best things to do.
Thinking about visiting St. Thomas in September? Expect fewer crowds, lower prices, and lush landscapes. While the skies may be cloudier and the risk of tropical weather remains, the island’s charm and peaceful pace will deliver a memorable vacation.
Here's your September guide for St. Thomas—from climate and tourism demand to daylight hours and seaweed conditions.
Not A Member? ✈️
Save 40%-95% On Flights With Jetsetter Alerts Airline Mistake Fare & Flash Sales Alerts!
St. Thomas Weather in September
- Temperature: Expect hot days (around 89–90 °F / 32 °C) and mild nights (about 79 °F / 26 °C)—perfect for tropical comfort.
- Rainfall & Climate: September is part of hurricane season. Rainfall averages about 5–6 inches, typically from afternoon thunderstorms. Cloud cover is substantial, softening the sunlight.
Sunrise & Sunset in September
- Daylight: You’ll get roughly 12 hours of light, giving you plenty of time for daily island adventures.
- Sunrise & Sunset: Expect sunrise around 6:05 AM and sunset around 6:30 PM, with slight shifts through the month.
Sargassum (Seaweed) in September
- Seasonal Status: Sargassum arrivals usually taper off by September, making it a low-to-moderate risk period.
- Where It Might Appear: East-facing shores are most susceptible to residual seaweed, though occurrences are generally minimal.
- Beach Conditions: North and west-facing beaches tend to remain clean and enjoy proactive clean-up routines.
- Traveler Insight: Many visitors note that beach staff or hotel teams clear any minor accumulations swiftly, ensuring enjoyable beach time throughout.
Sapphire Beach Live Cam
Check out the live cam before heading out to the beach for the day to know what you can expect. Zoom in a bit, and the beach is seen just over the top of the trees.
September Is The Low Season In St. Thomas
- Tourism Trends: This is one of the quieter months—rooms are easier to book, beaches are peaceful, and island rates are kinder on the wallet.
- Island Atmosphere: A blend of serene mornings, warm afternoons, and refreshing local culture defines the pace—plenty of space to explore hidden coves and historic quarters.
Best Things To Do in September
- Morning Beach Rituals: Dive into calm seas early—clear water, warm sun, zero crowds.
- Cultural Moments: Look for seasonal events and community gatherings—Celebrate Peace Day and other local festivities may light up the calendar.
- Flex Weather Play: Keep afternoon activities flexible—explore shops, museums, or botanical nooks during stormy breaks. Then resume your beach or lookout strolls when sunshine returns.
- Scenic Excursions: With fewer tourists, local viewpoints like Paradise Point feel like your own secret lookout.
Visiting St. Thomas In September Overview
| Category | September Snapshot |
|---|---|
| Weather | Hot, humid, periodic showers |
| Crowds & Pricing | Low season—great value, peaceful vibes |
| Daylight | Around 12 hours—ample for exploration |
| Sargassum | Low to moderate—mostly manageable |
| Activities | Morning beach time, cultural immersion, flexible planning |
Pros & Cons Of Visiting St. Thomas In September
Pros:
- Warm, still water and tranquil beaches.
- Quiet island rhythm and budget-friendly stays.
- Rich local culture and less tourist saturation.
Cons:
- Frequent rain showers and hurricane season vigilance.
- Cloudier skies and intermittent storm risk.
Looking For a Complete St. Thomas Travel Guide?
Kylie Jones